Publications

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"Genre-Based Information Hiding." R. Ogilvie and G. R. S. Weir. In ICGS3/e-Democracy 2011. Edited by R. Bashroush. LNICST 99, Springer. 2012. pp. 104-111. (BibTeX)

Abstract:
While data encryption is an effective means of keeping data private it
does not conceal the presence of 'hidden' information, rather it serves as an
indicator that such data is present. Concealing information and hiding the fact
that information is hidden are both desirable traits of a confidential data
exchange, especially if that exchange takes place across a public network such
as the Internet. In the present paper, we describe an approach to textual
steganography in which data is not only hidden, in virtue of its encoding, but
the presence of hidden data is also concealed, through use of human-readable
carrier texts. Information transmitted in this fashion remains confidential and its
confidential nature is also concealed. The approach detailed addresses several
shortcomings in previous work in this area. Specifically, we achieve a high rate
of accuracy in message decoding and also produce carrier texts which are both
coherent and plausible as human-readable plain text messages. These desirable
features of textual steganography are accomplished through a system of
sentence mapping and a genre-based approach to carrier text selection that
produces contextually related content in the carrier messages.